When Facebook users attempted to post links about the WikiLeaks files on their Facebook accounts, error messages popped up, saying the links had been "detected to be unsafe" by Facebook's security system. It then proceeded to ask users “to remove links to continue.”

Just earlier this month, Facebook came under fire for removing a live video showing the the fatal shooting of a Black man, Philando Castile, by a police officer in Minnesota. The company later came out to say the footage was removed due to a “technical glitch.”

This follows on the heels of speculation that Twitter had censored the quickly-rising trending hashtag #DNCLeaks.

The hashtag was trending worldwide, with over 251,000 tweets circulating revelations, such as those emails in which DNC leaders mocked Bernie Sanders.

Friday night, the trend disappeared for about 20 minutes, reported the Washington Examiner, causing uproar by WikiLeaks supporters. The trend then reappeared as #DNCLeak, but with significantly less tweets.

One Twitter user said the tweets might have been censored because some of the emails contained malware, and another mentioned that WikiLeaks did not leave out personal information like passport numbers and addresses. Twitter CEO and co-founder Jack Dorsey later called allegations of censorship “false.”

He and the other co-founders have been notably silent about politics during the election cycle, but their funds suggest significant investment in the DNC.

Former CEO Dick Costolo donated US$10,000 to the DNC, as did at least one other director, and Hillary Clinton was the company’s biggest recipient of donations with over US$30,000.